US5716482AExpiredUtility

Informational article and an associated method

19
Assignee: OPTICAL SECURITY GROUP INCPriority: Aug 22, 1995Filed: Apr 25, 1996Granted: Feb 10, 1998
Est. expiryAug 22, 2015(expired)· nominal 20-yr term from priority
Inventors:Michael S. Carr
B42D 25/47Y10T428/24876B42D 25/29Y10T428/31504B42D 25/23Y10S428/916Y10T428/24802B42D 25/21B42D 25/00B42D 25/328B41M 3/12Y10T428/31801
19
PatentIndex Score
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Cited by
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References
10
Claims

Abstract

An informational article having a separation control material disposed on a portion of the surface of the article and an information receiving layer overlying at least a portion of the separation control material and a portion of the surface. The information receiving layer is adapted to receive information thereon. A transparent tape is adhesively bonded to the information receiving layer containing the information. The transparent tape is more strongly adhered to the information receiving layer than the information receiving layer is adhered to the separation control material. In this way, removal of the transparent tape from the article removes both (i) the information receiving layer and (ii) the information overlying the separation control material from the remainder of the information receiving layer and the information. Because of this, evidence of tampering is easily, visually, detectable. An associated method is also disclosed.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A method of protecting an informational article including a substrate having a surface, said method comprising: providing said informational article having disposed on a portion of said surface a separation control material with an information receiving layer overlying at least a portion of said separation control material;   placing information on said information receiving layer;   securing a transparent tape over said information receiving layer containing said information and said substrate, said transparent tape being more strongly adhered to said information receiving layer than said information receiving layer is adhered to said separation control material so that removal of said transparent tape from said article removes both (i) said information receiving layer and (ii) said information overlying said separation control material from the remainder of said information receiving layer and said information, whereby evidence of tampering is visually detectable; and   employing as said separation control material a material selected from the group consisting of dimethyl silicones, alkyl modified silicone fluids, paraffins and tetrafluoroethylene.   
     
     
       2. The method of claim 1, including employing as said information receiving layer a material into which said information is absorbed so that said information is permanently marked onto said layer.   
     
     
       3. The method of claim 1, including providing a hologram disposed on said information receiving layer.   
     
     
       4. The method of claim 3, including employing as said hologram a metallized hologram.   
     
     
       5. The method of claim 3, including employing as said hologram a partially demetallized hologram.   
     
     
       6. The method of claim 3, including employing a clear high refractive index coating on said hologram.   
     
     
       7. The method of claim 1, including providing said transparent tape with a write resisting material on an exposed surface thereof.   
     
     
       8. The method of claim 7, including employing as said write resisting material a silicone resin and a wax.   
     
     
       9. The method of claim 8, wherein said transparent tape includes a pressure sensitive adhesive layer on the surface of said tape opposite said exposed surface.   
     
     
       10. The method of claim 1, including employing said method with said substrate made from a material selected from the group consisting of plastic, metal, non-fibrous material and tightly bound fibrous material.

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